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Finding the Fourth Proportional to 373,578.17, 515,516.87 and 212,472.41

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Solution

The fourth proportional to 373,578.17, 515,516.87 and 212,472.41 is: 293,199.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,578.17 : 515,516.87 = 212,472.41 : x
  2. Step 2: Convert to fraction form
    373,578.17/515,516.87 = 212,472.41/x
  3. Step 3: Cross multiply
    373,578.17x = 515,516.87 × 212,472.41
  4. Step 4: Simplify right side
    373,578.17x = 109,533,109,718.15
  5. Step 5: Solve for x
    x = 109,533,109,718.15/373,578.17
  6. Step 6: Final answer
    x = 293,199.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.